Underground Utility Construction

Founded in 1990, ABC Builders Group is a fully licensed general engineering and electrical contractor (Class A, B, C-10, and C-39) based in California.
With over three decades of experience, we specialize in civil construction and underground utility infrastructure, delivering safe, high-quality, and compliant solutions for public and private clients across the state.

Our experienced crews, certified professionals, and multi-license capability make us a trusted partner for undergrounding, system hardening, and utility infrastructure upgrades throughout California.

ABC Builders Group

Underground Utility Construction

Comprehensive expertise in: • Trenching, excavation, and conduit installation • Substructure and vault installation • Tie-ins and new service connections • Backfilling, compaction, and surface restoration • Concrete and asphalt repairs

Wildfire Safety & System Hardening

We specialize in: • Converting overhead lines to underground systems • Upgrading infrastructure in high fire-risk zones • Implementing long-term system reliability solutions All work performed under California’s highest safety and performance standards.

New Service & Rule 20 Projects

Our team executes: • Community underground conversions • New electric service installations • System replacements and upgrades Delivered with precision, compliance, and coordination with municipalities and utilities.

Utility Coordination & Permitting

We handle: • Route planning and permitting • Coordination with local agencies and utility companies • Documentation and compliance for all construction phases

Maintenance & Asset Support

Ongoing support for: • Cable replacement and repair • Underground asset validation and data collection • Preventive maintenance and infrastructure inspections

Safety & Compliance

Safety is our top priority. ABC Builders Group maintains strict compliance with Cal/OSHA, Damage Prevention Institute (DPI), and all applicable state and utility standards. Our crews are trained, certified, and fully equipped to deliver safe, efficient, and compliant results on every project site.

Why Choose ABC Builders Group

Partnering with ABC means working with a team that delivers: • Proven experience in underground utility and civil construction • Multi-license capability for full project delivery (A, B, C-10, C-39) • Commitment to safety, quality, and cost efficiency • Statewide coverage across California • Reliable performance from planning to completion

Service Area

Proudly serving clients across California — from San Diego to Redding, and everywhere in between. Our crews are strategically based to provide rapid response and localized expertise for projects throughout the state.